Water Resource Management Strategies

Sailfin mollies and juvenile tilapia swim in a drainage ditch that flows into the Salton Sea in Imperial County, California. ©DWR/2017

The California Water Plan provides a broad set of resource management strategies (RMSes) that can help local agencies and governments manage their water and related resources. The RMSes can be a technique, program, or policy that can be used to meet water-related management needs of a region and the state as a whole. The 30-plus RMSes provide a comprehensive suite of tools that can be used to achieve a variety of intended outcomes by utilizing a diverse mix of strategies.

Resource Management Strategies

The RMSes can be considered as tools in a toolkit. Just as the mix of tools in any given kit depend on the job to be accomplished, the combination of strategies will vary from region to region, depending on climate, projected growth, existing water system, environmental and social conditions, and regional goals. At the local level, it's important the proposed strategies complement the operation of existing water systems. Some strategies may have little value in certain regions. Other strategies may have little value in particular conditions. For example, precipitation enhancement may not be effective during drought.

While most of the RMSes have multiple potential benefits, each area of California needs to select the right mix of strategies to achieve their intended outcomes. Actual RMS benefits depend on how the strategies are implemented. It's important to note that the water supply benefits of the RMSes are not additive. Although presented individually, the RMSes are alternatives that can complement each other or compete for limited system capacity, funding, water supplies, or other components necessary for implementation. Assumptions, methods, data, and local conditions vary per strategy. For this reason, the estimated benefits and costs should not be used to prioritize actions, policies, or proportion of State investment.

Update 2023 - Public Review Draft

As part of the development of California Water Plan Update 2023 (Update 2023), 11 RMSes have been updated. The Update 2023 RMS updates reflect that climate change has driven water managers to develop and extend resource management for sustainability and resilience, and that social change has brought new focus to equity issues and community resilience. The new updates also illustrate how every strategy for managing water requires more consideration, skill, and sophistication to meet the demands of a decade of climate and social change. The RMS outline has also been revised to reflect Update 2023’s focus on three intersecting themes: addressing climate urgency, strengthening watershed resilience, and achieving equity in water management.

DWR has released a public review draft of the 11 RMSes on May 1, 2024, for a 30-day comment period. Comments received by May 31, 2024, will be used to inform the final versions of the strategies. Comments can be submitted by using an online comment form or via email at: cwpcom@water.ca.gov.

Additional information for submitting comments including postal mail is available in the Reviewer's Guide, which is also included in the updated RMS Introduction chapter.

Introduction
Agricultural Water Use Efficiency
Conjunctive Water Management
Desalination
Flood Management
Municipal Recycled Water
Precipitation Enhancement
Recharge Area Identification, Utilization and Protection
Reservoir Reoperation
Urban Stormwater Runoff Capture and Management
Urban Water Use Efficiency
Watershed Management

Please submit your comments by May 31, 2024. If you have any questions, please contact us at cwpcom@water.ca.gov.

Update 2013 Resource Management Strategies

Management Objectives

The RMSs are grouped into 8 different management objectives. For example, if you are looking for a way to improve water quality, look under the Improve Water Quality management objective.

Introduction and Other Strategies

Introduction ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

RMSs have multiple potential benefits and each area of California needs to select the right mix of strategies to achieve their intended outcomes. Actual RMS benefits depend on how the strategies are implemented.

Other Strategies ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

This narrative highlights a variety of water management strategies that can potentially generate benefits that meet one or more water management objectives, such as water supply augmentation or water quality enhancements. However, these management strategies have limited capacity to strategically address longterm regional water planning needs. These are unique strategies and do not fit into the other classified strategies.

Reduce Water Demand

Agricultural Water Use Efficiency | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

The agricultural water use efficiency strategy describes the use and application of scientific processes to control agricultural water delivery and use to achieve a beneficial outcome.

Urban Water Use Efficiency | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Once viewed and invoked primarily as a temporary strategy in response to a drought or emergency water shortage situation, water use efficiency has become a permanent part of the long-term management of California’s water supply.

Improve Flood Management

Flood Management ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

This flood management strategy provides local and regional water managers a broader perspective of the flood management tools that are available and their interrelationships within one report.

Improve Operational Efficiency and Transfers

Conveyance - Delta ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Conveyance provides for the movement of water, geographically connecting the supply to the demand. The Delta is a centerpiece of California’s water system.

Conveyance - Regional and Local ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Conveyance provides for the movement of water, geographically connecting the supply to the demand. Regional and local water supply conveyance is discussed in this resource management strategy report.

System Reoperation ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

System reoperation in the context of water resources means changing existing operation and management procedures for a water resources system consisting of supply and conveyance facilities and end user demands with the goal of increasing desired benefits from the system.

Water Transfers ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Water transfers are a form of flexible system reoperation linked to many other water management strategies, including surface water and groundwater storage, conjunctive management, conveyance efficiency, water use efficiency, water quality improvements, and planned crop shifting or crop idling for the specific purpose of transferring water

Increase Water Supply

Conjunctive Management and Groundwater ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Conjunctive management or conjunctive use refers to the coordinated and planned use and management of both surface water and groundwater resources to maximize the availability and reliability of water supplies in a region to meet various management objectives. Surface water and groundwater resources typically differ significantly in their availability, quality, management needs, and development and use costs. Managing both resources together, rather than in isolation, allows water managers to use the advantages of both resources for maximum benefit.

Desalination - Brackish and Sea Water ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Desalination, the removal of salts from saline waters, is one of the few options available to augment California’s water supply.

Municipal Recycled Water ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Municipal recycled water benefits the state and individual water users by reducing long-distance water conveyance needs, providing local water supplies, and being a drought-resistant resource. This resource management strategy report will describe the current status of recycled water in California, what some of the challenges are to its increasing use, and the resources needed to continue to increase municipal recycled water use.

Precipitation Enhancement ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Precipitation enhancement, commonly called “cloud seeding,” artificially stimulates clouds to produce more rainfall or snowfall than they would produce naturally.

Surface Storage - CALFED and State ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Surface storage is the term for the use of human-made, above-ground reservoirs to collect water for later release when needed. Surface storage has played a key role in California where the quantity, timing, and location of water demand frequently does not match the natural water supply availability. This strategy focuses on statewide options.

Surface Storage - Regional and Local ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Improve Water Quality

Drinking Water Treatment and Distribution ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Providing a reliable supply of safe drinking water is the primary goal of public water systems in California. To achieve this goal, public water systems must develop and maintain adequate water treatment and distribution facilities.

Groundwater and Aquifer Remediation ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Groundwater remediation removes constituents, hereafter called contaminants, which affect beneficial use of groundwater. Groundwater remediation systems can employ passive or active methods to remove contaminants.

Matching Water Quality to Use ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Matching water quality to use is a management strategy that recognizes that not all water uses require the same water quality. One common measure of water quality is its suitability for an intended use; a water quality constituent often is only considered a contaminant when that constituent adversely affects the intended use of the water.

Pollution Prevention ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Pollution prevention can be defined as the reducing or eliminating of waste at the source by modifying production processes, promoting the use of non-toxic or less toxic substances, the implementation of practices or conservation techniques including activities that reduce the generation and/or discharge of the pollutants, and the application of innovative and alternative technologies which prevent pollutants from entering the environment prior to treatment.

Salt and Salinity Management ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Salinity management not only reduces salt loads that impact a region, it is also a key component of securing, maintaining, and recovering usable water supplies. Salt is ubiquitous throughout the environment and it is a conservative constituent meaning it is never destroyed, just concentrated or diluted and transported.

Urban Stormwater Runoff Management ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Urban stormwater runoff management is a broad series of activities to manage both stormwater and dryweather runoff.

Practice Resource Stewardship

Content goes here

Agricultural Land Stewardship ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

This resource management strategy focuses primarily on private land in agriculture including cultivated land and rangeland.

Ecosystem Restoration ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Ecosystem restoration improves the condition of California’s modified natural landscapes and biological communities to provide for their sustainability and for their use and enjoyment by current and future generations.

Forest Management ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Forest management activities can affect water quantity and quality. This strategy focuses on forest management activities, on both public and privately-owned forest lands, whose goals specifically include improvement of the availability and quality of water for downstream users.

Land Use Planning and Management ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Land use planning and management cuts across many resource management strategies. More efficient and effective land use is linked to several resource management strategies including watershed, water use efficiency, groundwater quality, flood management, parks and recreation, climate change adaptive management, and agricultural lands stewardship.

Recharge Area Protection ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Recharge areas are those areas that provide the primary means of replenishing groundwater. Good natural recharge areas are those where good quality surface water is able to percolate through the sediments and rocks to the saturated zone which contains groundwater. If recharge areas cease to function properly, it will limit groundwater replenishment and/or groundwater quality for storage or use.

Sediment Management ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Sediment in California is a valuable resource when it is properly managed, which results in multiple water benefits, environmental health, economic stability, and coastal safety.

Watershed Management ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Watershed management is the process of creating and implementing plans, programs, projects, and activities to restore, sustain, and enhance watershed functions. These functions provide the goods, services, and values desired by the human community that are affected by conditions within a watershed.

People and Water

Economic Incentives ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Economic incentives include financial assistance, water pricing, and water market policies intended to influence water management. Economic incentives can influence the amount and time of water use, wastewater volume, and source of water supply.

Outreach and Engagement ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

Outreach and engagement for water management in California is use of tools and practices by water agencies to facilitate contributions by public individuals and groups toward good water management outcomes.

Water and Culture ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

This resource management strategy report presents the emerging thinking of many California Water Plan Advisory Committee members and other stakeholders regarding the importance of linking cultural considerations to water management.

Water-Dependent Recreation ( PDF) | (Revision Date: Jul 29, 2016) (Publish Date: Jul 29, 2016)

By planning for water-dependent recreation activities in water projects, water managers play a critical role in ensuring that all Californians today and into the future are able to enjoy such activities.

Water Resource Management Strategies

Resource Management Strategies

Update 2023 - Public Review Draft

Update 2013 Resource Management Strategies

Management Objectives

Introduction and Other Strategies

Reduce Water Demand

Improve Flood Management

Improve Operational Efficiency and Transfers

Increase Water Supply

Improve Water Quality

Practice Resource Stewardship

People and Water

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